报告指出，在多个国家和地区，甲型H3N2病毒已成为主导流行株，并且其基因序列与抗原特性均呈现出进化趋势。此外，与往年 相比，今年全球流感活动出现新变化。在北半球，部分国家的流感季提前开始；而在南半球，一些国家流感季持续时间显著延长， 目前病毒活动仍维持在较高水平。世卫组织表示，即使当前主要的流感病毒与流感疫苗所覆盖的毒株间存在一些基因差异，但是流 感疫苗仍具有保护作用，接种疫苗仍然是最有效的公共卫生措施之一。 转载请注明央视财经 编辑：潘煦 （央视财经《第一时间》）据世界卫生组织10日发布的报告，今年10月以来，全球流感活动有所增加。在当前检测到的流感病毒 中，大部分是甲型流感病毒。 ...

世卫组织表示，即使当前检测到的主要流感病毒与流感疫苗所覆盖的毒株间存在一些基因差异，流感疫 苗仍可以起到保护作用，且有望预防重症，接种疫苗仍然是最有效的公共卫生措施之一。 （文章来源：新华网） 报告说，在全球多个国家和地区，甲型H3N2亚型流感病毒在检测到的流感病毒中所占比例都在增加。 病毒基因序列数据显示，自今年8月以来，多个国家检测到的甲型H3N2亚型流感病毒K亚分支数量增 加，这标志着流感病毒的显著进化，但目前的流行病学数据并未显示其引发的疾病严重程度增加。 报告指出，随着北半球冬季到来，每年此时由流感病毒、呼吸道合胞病毒和其他常见呼吸道病毒引起的 呼吸道感染病例都会增加，今年的情况也符合这一趋势。北半球一些国家报告称流感季提前到来；在另 一些国家，流感活动开始增加，但尚未达到流行的阈值。与往年相比，南半球一些国家的流感疫情持续 时间异常漫长，近几个月来的病毒活动仍高于往年水平。 世界卫生组织10日发布的《季节性流感全球形势》报告指出，自今年10月以来，全球流感活动有所增 加，全球检测到的流感病毒中，大部分是甲型流感病毒。 ...

Core Viewpoint - The current flu season in China is experiencing a significant rise in activity, primarily driven by the H3N2 subtype, which accounts for over 95% of cases, while H1N1 and B-type influenza viruses are also present in smaller numbers [3][4]. Group 1: Flu Virus Dynamics - The main change in this flu season is the dominance of the H3N2 strain, which has replaced H1N1 as the primary circulating virus [4]. - The H3N2 strain has not seen large-scale outbreaks in the past two years, leading to a general lack of immunity in the population, thus increasing the risk of infection [4]. - Even though the H3N2 subtype name remains the same, the virus undergoes minor antigenic changes each season, making it a "familiar new enemy" for the immune system [4]. Group 2: Flu Season Statistics - In the 2025-2026 flu season (as of November 2025), H3N2 is the absolute dominant strain, while H1N1 was the main strain in the previous season, accounting for over 99% [5]. - The current flu activity is rapidly increasing, with many provinces reaching moderate to high levels of circulation, contrasting with the previous season, which was relatively stable with localized outbreaks [5]. - The high-risk population this season includes children aged 5-14, who are showing a significant increase in cases, whereas the previous season had a more evenly distributed age demographic [5]. Group 3: Antiviral Medications - Oseltamivir and baloxavir marboxil should not be used as long-term preventive medications; oseltamivir is effective only during the treatment period, and improper use may increase the risk of resistance [6][8]. - In special cases, such as households with individuals over 65 years old, oseltamivir may be considered for preventive use if someone in the household is infected [8]. - It is crucial to take antiviral medications within 48 hours of symptom onset to shorten the duration of illness and reduce the risk of severe outcomes [8]. Group 4: Vaccination Recommendations - The 2025 flu vaccine covers the H3N2 strain and has an efficacy rate of 60%-80%, significantly reducing the risk of severe illness even if infection occurs [10].

中国疾控中心病毒病所研究员 王大燕：目前，全国共有17个省份流感活动处于高流行水平，其余省份处于中流行水平，门急 诊就诊的流感样病例患者中流感病毒检测阳性率达到51%，未超过近三年最高水平。 当前检出均为已知常见病原体 无新发传染病 央视网消息：入冬后，呼吸道疾病进入高发季。12月5日，中国疾控中心相关负责人表示，目前，全国共有17个省份流感处于 高流行水平。 专家强调，流感是由流感病毒引起的急性呼吸道传染病，其传播速度快、人群普遍易感，与普通感冒不同。学校、托幼和养老 机构等人群密集场所易发生聚集性疫情。本次流行季流感聚集性疫情数量已明显高于上一季。 中国疾控中心病毒病所研究员王大燕：大家应尽早到设有免疫接种门诊的医疗卫生机构接种流感疫苗，除预防感染外，还可减 少重症风险。 各地积极应对 增加医疗服务供给 针对当前呼吸道传染病的情况，国家卫生健康委、国家疾控局等部门部署各地，加强监测预警，各医疗机构全力统筹医护力 量。发热门诊、呼吸科、儿科实行24小时接诊，确保药品、疫苗等物资保障充足，并在重点场所进行防控强化，加强监测预警和聚 集性疫情处置。 监测情况显示，全国哨点医院报告的流感样病例百分比为9.6%；病 ...

太长不看版： 1. 流感样病例门诊占比持续升高，预计12月中旬达峰。 先说一个事实：每年全球约10亿人感染季节性流感、造成300万到500万重症病例、29万到65万呼吸道疾病死亡。 事实上，今年的这个流感，比以往来的时候更早一些。 最近很多群聊提到最多的主题词之一，就是"流感"。 高度活跃，多处暴发 "家里孩子班上好多学生得流感了没来上学"、"学校流感暴发停课了"、"身边好多人因为流感请假了"、"家人得流感了带着在医院呢"…… 这些到底是直观感受，还是今年流感真的来势汹汹？ 2025年12月3日，国家流感中心比以往提前1天（以前每周四发）发布了《2025年第48周第885期中国流感监测周报》。 周报提到：2025年第48周，南、北方省份流感活动上升。 此外，本周全国共报告1541起流感样病例暴发疫情，而2024年第48周时，这个数字则是31起，相差近50倍！ 2. 甲型H3N2占比超过99%，并且已经出现耐药株。 3. 疫苗接种是降低流感风险的有效手段，不同流感疫苗均安全、有效。 4. 多国K亚分支已成主流，疫苗可降低"K亚分支"所致疾病风险。 5. 良好的卫生习惯、生活习惯，以及规范诊疗也必不可少。 6. ...

11月27日，中国疾病预防控制中心发布数据显示，在全国门急诊流感样病例中，流感阳性率接近45%，整体进入中流行水平，部分省份已达高流行水平。 监测数据显示，流行高峰一般出现在12月中下旬至1月初，之后将进入下降阶段。 认清流感 别把它和普通感冒混为一谈 引起流感的病原体是什么？ 症状：集中在鼻咽部，如鼻塞、流涕、打喷嚏、喉咙痛。全身症状轻微，一般不发烧或仅低烧，通常一周内自愈。 有什么特点？ 流感是流感病毒导致的急性呼吸道传染病。流感病毒分为甲、乙、丙、丁四型，当前我国流感流行毒株以甲型H3N2亚型为主。每年的流行毒株是甲型H3N2 亚型、甲型H1N1流感、乙型Victoria系中的一个亚型或多个亚型，每年优势毒株不同是流感的正常规律。 流感是如何传播的？ 飞沫传播：如打喷嚏、咳嗽或说话时会产生带有病毒的飞沫，他人吸入这些飞沫后，病毒可能进入体内通过间接接触而传播，这也是一种比较常见的传播途 径。 接触传播：如触摸口鼻、眼睛等部位后病毒可能通过手传播到物体上，如把手放在键盘、门把手、开关等处，他人再接触这些被病毒污染的物体后极易发生 被感染。 流感的典型症状有哪些？ 与普通感冒有什么不同？ 普通感冒主要"折腾 ...

中国疾控中心最新发布的全国急性呼吸道传染病哨点监测情况显示，近期我国流感活动呈上升趋势，流 感疫情整体处于中流行水平。值得注意的是，学校聚集性疫情报告显著增多，5-14岁病例组检测阳性率 明显高于其他年龄组。 儿童得了流感，往往一家人都跟着着急。流感病程一般多长？如何抓好治疗"黄金48小时"？居家护理要 避免哪些误区？就家长最关心的问题，我们请来国家儿童医学中心北京儿童医院专家，"手把手"指导。 【答疑专家】 国家儿童医学中心北京儿童医院重症医学科主任 王荃 国家儿童医学中心北京儿童医院急诊内科副主任医师 赵光远 问：甲型H3N2毒株在目前流感病例中占比较高，它有什么特点？防治策略上有无不同？ 答：甲型H3N2毒株不是全新的病毒，最早于1968年在香港被发现，并引起全球大流行，也就是我们熟 知的"香港流感"，此后它成为季节性流行的主要甲型流感病毒毒株之一，与甲型H1N1和乙型流感病毒 共同循环。它有这几个特点：变异速度快；致病性和传播性强；症状典型且可能更重，高热突出，咽痛 咳嗽明显，肌肉酸痛、乏力等全身症状较重，儿童可出现恶心、呕吐、腹泻等消化道症状。H3N2对老 年人、儿童、孕产妇、慢性病患者等威胁较大。 ...

Core Viewpoint - The company has developed a lyophilized nasal spray influenza vaccine suitable for individuals aged 3 to 17, which simulates natural infection and induces both systemic and local mucosal immunity with a validity period of 10 months [1] Group 1: Product Details - The lyophilized nasal spray influenza vaccine is the only nasal spray live attenuated influenza vaccine in China, significantly improving vaccination compliance among recipients [1] - The liquid nasal spray influenza vaccine received production approval in August 2025, representing an upgrade from the lyophilized form, eliminating the need for reconstitution during use [1] Group 2: Regulatory and Global Context - The lyophilized nasal spray influenza vaccine is part of the World Health Organization's (WHO) Global Action Plan for Influenza Vaccines (GAP) [1]

Core Insights - The flu season in China is expected to arrive earlier this year due to various factors, with the flu virus being the primary pathogen for acute respiratory infections this winter and spring [1] - The current flu activity in China is on the rise, particularly in southern provinces, with Guangdong and Hainan showing higher levels of flu activity compared to other regions [1] Flu Virus Strains - The predominant flu strain currently circulating in China is the H3N2 subtype, accounting for over 95% of the flu viruses detected [3] - H3N2 is not a new subtype; it has been commonly observed in previous flu seasons, with different strains often alternating dominance [3] Symptoms and Treatment - Flu symptoms are typically more severe than other respiratory diseases, including high fever above 38.5°C, muscle pain, and significant systemic symptoms [5] - Common symptoms across different flu virus subtypes (H1N1, H3N2, and B) are similar, and antiviral treatments are effective regardless of the subtype [7] Antiviral Medications - The main antiviral medications used in China for treating flu include Oseltamivir and Marbofloxacin, with Oseltamivir being available in various forms suitable for children [7] - Marbofloxacin, a newer RNA polymerase inhibitor, requires only a single dose, making it particularly suitable for children and the elderly, although it is currently approved for use in individuals aged 5 and older [7] Vaccine and Virus Mutation - There are misconceptions that flu vaccines can cause virus mutations; however, it has been clarified that vaccines do not induce mutations, as the flu virus mutates annually regardless of vaccination [11] - Vaccination is beneficial and does not contribute to virus variation, which is a natural occurrence [11]

Group 1 - The core viewpoint of the article highlights the early onset of the flu season in China, with a significant increase in flu activity observed in southern provinces, and the predominant strain this year being H3N2, differing from last year's H1N1 strain, which may lead to lower immunity among the population [2] - The flu season has started earlier than usual, with countries like Japan, the UK, Germany, and Italy also reporting increased flu cases, indicating a potential rise in infection numbers this year [2] - Early identification of flu symptoms is crucial, as severe cases can lead to complications such as pneumonia and multi-organ failure, emphasizing the need for timely medical attention [3][4] Group 2 - Vaccination is recommended between September and November for optimal prevention, although it can still be administered throughout the flu season [6] - Annual vaccination is necessary due to the rapid mutation of the flu virus, which means that the vaccine from the previous year may not provide adequate protection against the current strains [7] - High-risk groups, including children under 5, the elderly over 65, pregnant women, and individuals with chronic health conditions, should prioritize vaccination and seek timely medical evaluation if symptoms arise [8][11] Group 3 - The article explains the difference between trivalent and quadrivalent flu vaccines, with quadrivalent vaccines covering an additional strain of the B virus [13] - Vaccination should be conducted at qualified medical institutions, such as community health service centers or hospitals, and individuals exhibiting flu-like symptoms should seek medical care promptly [14]